You're going to be on vacation, man. Give the people you want to be able to reach you the number where you're staying. Check for messages a couple times a day and enjoy yourself the rest of the time.

I traveled to Hawaii recently. My wife and I gave our parents the number of the resort we were staying at just in case there was a family emergency and then we both locked our cell phones in the room safe. I checked my work email once a day and relaxed the rest of the time.

If it involves an emergency with my kids I prefer to be notified immediately rather than a few hours later.